At the time of this publication, the Bureau of Economic Analysis (BEA) had only published chained 2000 dollar estimates from 1990 onward. Current dollar estimates for earlier years can be found in Table 3-3a.

Transportation structures for 1990 to 1996 include only railroads and consists of air and land after 1996.

SOURCE

U.S. Department of Commerce, Bureau of Economic Analysis, National Income and Product Accounts Tables, tables 1.4.6, 2.3.6, 3.11.6, 3.15.6, 5.3.6, 5.4.6AU and 5.4.6BU, available at http://www.bea.gov/ as of December 2008.